<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>zyx</title>
</head>
<body>
    <script>
    //值类型
    //赋值 将等号 右边的值复制一份给等号左边
    var num = 18;
    var num1 = num;
    console.log(num,num1); //18,18

    num1 = 20;
    console.log(num, num1); //18,20

    //引用类型
    //赋值 将等号 右边的值复制一份给等号左边
    var obj = {
        name:'老曾',
        age:18
    }
    var obj2 = obj;
    console.log(obj.age,obj.age); //18,18

    obj2.age = 20;
    console.log(obj.age,obj2.age); //20,20

    //作业
    var fn1 = function(){
        //函数体
        console.log('fn1打印结果');
        
    }
    var fn2 = fn1;
    fn2(); //得到的结果为

    /*****
    赋值操作(=):把当前变量储存的值复制一份给接收的变量

    值类型的赋值: 把当前变量储存的值(具体的数据) 复制一份给接收的变量

    引用类型的赋值: 把当前变量存储的值(具体数据的引用即地址) 复制一份给接受的变量
    
    
    
    ****/
    
    
    
    
    </script>
</body>
</html>